DE2049157C2 - Coal planer, especially for thick seams - Google Patents

Description

2. coal plane according to claim 1, characterized in that d & L of the tool carrier (6) for Lying is angled.

3. Coal plane according to claims 1 and 2, characterized in that on the cutting head (16) of the planer limiting the pivoting movement to the lying, with parts of the Strebffirderers cooperating stop (17) is provided.

4. Coal plane according to claim 1 or one of the preceding claims, characterized in that that the cutting head (16) is mounted adjustable in length in a manner known per se.

5. coal plane according to claim 4, characterized in that the cutting head 16) is perpendicular vertical axes extending to the cutting direction can be pivoted on the piston rods (14) of two piston-cylinder units arranged in the tool carrier (6) is arranged.

6. coal plane according to claim 1 or one of the preceding claims, characterized in that that the guide frame (4) is slidably arranged on a guide tube (3), which is attached to a brake (2) attached to the face conveyor on the offset side, and that there is a has in the direction of the lying arm extending in a manner known per se in a chain guide box engages and is connected there to the traction means (10).

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The present invention relates to a coal plow, in particular for thick seams, the consists of a guide frame supported on the face conveyor, in which one in the longitudinal direction of the conveyor extending horizontal joint axis is arranged, around which a face conveyor freely protruding, trained as a tool carrier arm is pivotable in the vertical plane.

A coal plow for thick seams is known (German Auslegeschrift 1238 418), the, portal-like guided over the conveyor, at its upper end for the purpose of adjusting to different seam thicknesses carries a tool carrier which is designed to be pivotable about an axis parallel to the conveyor and between its pivot axis lying approximately in the middle of the conveyor and the coal face the conveyor towering over freely. A plane has also become known (O'eutsche Auslegeschrift 1 263 654), the, am koh-Mit such a conveyor freely cantilevered and free from the horizontal to the hanging wall Ao swiveling planes can be used for a number of valuable ler advantages over all conventional planes known to date. First of all, because of the low number of chisels significantly increase the speed of the planer, possibly up to »5 the speed of the cutting machine pecking This increase in running speed has the advantage of an even loading of the conveyor in the valley and when the planer travels uphill it is no longer necessary to switch to the expensive and space-consuming pole-changing Engines or manual gearboxes. Second, because of the small number The cutting depth of the chisel can be increased significantly in favor of a larger accumulation of lump coal. This can be increased by the fact that initially larger ribs are intentionally used in the individual planer pulls be left standing and this? · only on the Schiuli be planed away. Thirdly, because of the pivotable wedge, the chisel extends over the entire seam thickness given the opportunity to initially leave the recovery equipment standing and then - if it protrudes far enough - only then to be removed without considerable resistance and chisel wear. The plane is lighter and therefore its management easier. As demonstrated by the planes with the pull chain arranged on the offset side have, is the difficulty of the leadership due to the large lever arm between pull chain attack and chisels quite technically controllable.

Further advantages can be achieved through an appropriate individual design. By a bend of the tool carrier towards the horizontal is the free passage of coal at the lowest position of the tool carrier ensured. In addition, there is the possibility that he, with appropriate training the height adjustment can always move freely upwards if larger pieces are allowed through Need to become. The lowest position of the tool holder is set by a on the cutting head of the Plane attached, interacting with the face conveyor limit limit. You can continue in on In a known manner, the actual cutting head with the tool carrier is adjustable in length for adjusting the cutting depth be connected. This connection is according to a further feature of the invention by two piston-cylinder units arranged in the tool holder and the cutting head with them over two perpendicular to the cutting direction vertical axes connected, so can by a different action on the cylinder

the cutting head can be brought into its cutting position in the direction of travel.

It is advantageous to have this guide frame on a profile attached to the conveyor brake on the offset side to let slide and by one extending in the direction of the lying and, in itself, known Way, <n engaging a chain guide box To connect the arm with the pull chain. The tilting moments in the chain case are that come from the plane, intercepted. to

It is known to arrange a loose device on each strand of the revolving traction device. Here can It may be advantageous to couple both controls of the cutting head heights in such a way that the tool carriers be raised or lowered in a corresponding manner to prevent collisions.

In the mode of operation, with the construction according to the invention, there is a great deal of freedom in cooling given to the front. The drawings show exemplary embodiments of the invention. ao

Fig. 1 shows a tool carrier in a Strebque; -section;

F i g. 2 the same tool carrier in plan and

F i g. 3 two tool carriers in the face cross-section, as which are attached to the two opposing strands of the traction mechanism.

The gesture of leadership4 that is above the one on the Brake 2 arranged Rohr3 runs, carries the pivot axis 5, around which the tool carrier 6 by means of the Cylinder-piston unit 8, which engages in joint 7, can be pivoted. The cutting head 16 is mil connected to the tool carrier 6 by means of the two cylinder-piston units 12, 13, 14. He can through it be moved more or less deep into the coal face relative to the tool carrier. Because he is connected to the piston rods 14 by the hinge pin 15, it can be actuated in a differentiated manner the piston 13 is also brought into the correct cutting position in each case, like this F i g. 2 shows. The cutting head 16 has a stop 17 which is connected to the slide-up ramp 18 of the conveyor 1 cooperates.

The guide frame 4 comprises the pipe guide 3 with the sleeves 19 and has a lying down arm 9, which in a known manner in a Ketlenkanal engages and there with the pull chain 10 is connected. With the arrangement of two tool carriers 20, 21, according to FIG. 3, these will be with the. Pull chains 10 and 11 connected.

1 sheet of drawings

Claims (1)

Patent claims: 1. Coal planer, especially for thick seams, consisting of a face conveyor supporting guide frame with a horizontal one running in the longitudinal direction of the conveyor Articulation axis on which a tool carrier designed as the face conveyor freely protruding overhead is arranged pivotably in the vertical plane, characterized in that the guide frame (4) has a single, hanging from the wall Has tool carrier (6) which can be pivoted up to the horizontal and only on the offset side guided and supported on the face conveyor